VizieR

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VizieR

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phase: 3

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J/A+A/539/A74/ca...

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Distance ρ
Position angle θ
Distance (x,y)
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J2000
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IAU/CDS nomenclature

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Simple Target List Of Targets Fast Xmatch with large catalogs or Simbad

Target Name (resolved by Sesame) or Position:	Target dimension:
NB: The epoch used for the query is the original epoch of the table(s)	Radius Box size

	J/A+A/539/A74	2804		NGC1893 Chandra X-ray catalog (Caramazza+, 2012) ReadMe+ftp 2012A&A...539A..74C Similar Catalogs Post annotation
1.	J/A+A/539/A74/catalog		NGC1893 Chandra X-ray catalog: basic source properties (1021 rows) metaJ/A+A/539/A74/catalog

Simple Constraint List Of Constraints

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applied on Columns (Output Order: + - )

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Column

Constraint

Explain (UCD)

recno

Record number assigned by the VizieR team. Should Not be used for identification. (meta.record) (RECORD)

Seq

Identification number (meta.id;meta.main) (ID_NUMBER)

Name

(char)

IAU Designation (HHMMSS.ss+DDMMSS.s) (meta.id) (ID_MAIN)

RAJ2000

deg

⁽ⁱ⁾ X-ray Right ascension (J2000) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)

DEJ2000

deg

⁽ⁱ⁾ X-ray Declination (J2000) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)

e_pos

arcsec

Standard deviation of position (stat.error) (ERROR)

OffAxis

arcmin

Off-axis angle (instr.offset) (INST_ANG_OFFAXIS)

CTn

Net counts extracted in the total energy band (phot.count;em.X-ray) (PHOT_COUNTS_X)

e_CTn

Average of the upper and lower 1 sigma errors (stat.error) (ERROR)

CTbg

Background counts expected in the source extraction region (total band) (instr.background;obs.field) (INST_BACKGROUND)

PSFf

[0/1] Fraction of the PSF (at 1.497keV) enclosed within the extraction region (instr.det.psf) (INST_PSF)

Signi

Photometric significance computed as net counts divided by the upper error on net counts (meta.note) (STAT_SIGNIFICANCE)

PKS

⁽ⁿ⁾ [0/1] Kolmogorov-Smirnov probability that the lightcurves of the sources are constant (stat.fit.goodness) (STAT_PROBABILITY)

t.exp

Effective exposure time (time.duration;obs.exposure) (TIME_EXPTIME)

Emed

keV

⁽ⁿ⁾ Background-corrected median photon energy (total band) (em.energy) (PHYS_ENERGY_X)

logLX

[10-7W]

⁽ⁿ⁾ Absorption-corrected X-ray luminosities (phys.luminosity;em.X-ray) (PHYS_LUMINOSITY_X)

r_logLX

(char)

X-ray Luminosity origin (Note 1) (meta.ref;pos.frame) (REFER_CODE)

ALL cols

⁽ⁿ⁾ indicates a possible blank or NULL column

⁽ⁱ⁾indexed column

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	Display UCD1+ UCD1

https://cdsannotations.u-strasbg.fr/annotations/vizierTable//

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→ Cite/acknowledge VizieR catalogue
→ Rules of usage of VizieR data

Contact - Legals

If the access to catalogues with VizieR was helpful for your research work,the following acknowledgment would be appreciated: This research has made use of the VizieR catalogue access tool, CDS, Strasbourg, France (DOI: 10.26093/cds/vizier). The original description of the VizieR service was published in A&AS 143, 23